22-5 Muhammad ibn Ali Majiluyih - may God be pleased with him - narrated that his uncle Muhammad ibn Abil-Qasim quoted Harun ibn Muslim, on the authority of Mus’adat ibn Sadaqah, on the authority of Ja’far ibn Muhammad as-Sadiq (MGB), on the authority of his father (MGB), on the authority of his forefathers (MGB), on the authority of Ali (MGB) that God’s Prophet (MGB) said,

“Anyone who believes in God and the Hereafter should not postpone shaving the pubic hair for more than forty days. If he doesn’t have a razor after forty days, he should borrow one and not put it off.”